Subject:
|
(no subject)
|
Newsgroups:
|
lugnet.robotics.handyboard
|
Date:
|
Fri, 7 Jun 1996 15:11:14 GMT
|
Original-From:
|
Fred G. Martin <fredm@media.mit.edu%stopspammers%>
|
Viewed:
|
1528 times
|
| |
|
|
> Would you please let me know the input impedance of the
> AD circuit ?
all sensor inputs have a 47K pull-up resistor. If you remove this
(by cutting the trace between the sensor input pin and the 47K
resistor pack), then the analog inputs are pretty high impedence,
like a meg or so.
You should get the "M68HC11 Reference Manual" by Motorola. See
http://el.www.media.mit.edu/groups/el/projects/handy-board/techdocs/
for ordering info.
-F
|
|
Message is in Reply To:
2 Messages in This Thread:
  
- Entire Thread on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
|
|
|
|
